Scs-Sandy Creek Site-28 Reservoir Report
Last Updated: January 11, 2026
SCS-Sandy Creek Site-28 is a state-owned dam located in Oil Center, Garvin County, Oklahoma.
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Summary
Built in 1960 by the USDA NRCS, this earth dam stands at a height of 26 feet and is primarily used for flood risk reduction along the TR-Spring Brook Creek. With a storage capacity of 492 acre-feet and a surface area of 21 acres, the dam plays a crucial role in controlling water flow and mitigating flood risks in the area.
Managed by the Oklahoma Water Resources Board, SCS-Sandy Creek Site-28 has a controlled spillway and a single valve outlet gate for water release. Despite being classified as having a low hazard potential, the dam is considered to have a very high risk assessment due to its age and the lack of recent condition assessments. With a risk management plan yet to be developed, it is important for stakeholders and regulators to prioritize the safety and maintenance of this essential infrastructure to ensure its continued effectiveness in flood control and water resource management in the region.
The dam has not been inspected since 1980, highlighting the need for regular monitoring and maintenance to address any potential safety concerns. With its strategic location and critical role in flood risk reduction, SCS-Sandy Creek Site-28 serves as a vital component of the water resource infrastructure in Garvin County, Oklahoma. It is imperative for state agencies and stakeholders to work together to ensure the continued functionality and safety of this key structure for the benefit of the local community and the environment.
Year Completed |
1960 |
Dam Length |
1100 |
Dam Height |
26 |
River Or Stream |
TR-SPRING BROOK CREEK |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
26 |
Nid Storage |
492 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River Near Pauls Valley
|
350cfs |
Rock Creek At Sulphur
|
7cfs |
Little River Near Tecumseh
|
11cfs |
Little River Near Sasakwa
|
24cfs |
Canadian River At Purcell
|
235cfs |
Walnut Creek At Purcell
|
31cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Scs-Sandy Creek Site-28